diff --git a/Makefile b/Makefile
index 09579cdcef9..9a4633059dc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION_MAJOR 	   = 1
 VERSION_MINOR 	   = 9
-PATCHLEVEL 	   = 0
+PATCHLEVEL 	   = 99
 VERSION_RESERVED   = 0
 EXTRAVERSION       =
 NAME 		   = Zephyr Kernel